What tubes does the Garnet G90Tr use?

The Garnet G90Tr uses 12AX7, 12AX7 preamp tubes and EL34, EL34, EL34, EL34 power tubes.

When was the Garnet G90Tr produced?

The Garnet G90Tr was produced 1968–1974.

Garnet G90Tr preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Garnet G90TR is a 90-watt Canadian tube guitar head with integrated tremolo and reverb, positioned in the middle of Garnet's professional range. Its all-tube signal path produced a warm, dynamic response that cleaned up at lower volumes and produced pleasing harmonic saturation when pushed hard. The G90TR was a common sight on Canadian stages throughout the late 1960s and early 1970s.

Years produced: 1968–1974
Made in: Canada
Wattage: 90W
Channels: 2
Preamp tubes: 12AX7, 12AX7
Power tubes: EL34, EL34, EL34, EL34

Schematic-derived preset files for 16 Fractal and Line 6 modelers: Axe-Fx II/XL/XL+, Axe-Fx III, FM3, FM9, and the full Helix family (Floor, LT, Rack, HX Stomp, HX Stomp XL, Native).

Gridleak extracts amp parameters from original circuit schematics using AI vision — component values, gain staging, tone stack topology, tube types — then generates native preset files for every supported modeler. Every extraction is scored 0–100 and the score is published.